“People were dying and we didn’t know why,” Cornman told me. “We didn’t understand the physics of why the planes were crashing.” The deadly gusts were thought to be blowing in from the ocean or from thunderstorms outside the airports. But the danger turned out to be right above them. In the late seventies, researchers at NCAR and the University of Chicago discovered that the crashes were caused by microbursts—sudden, violent downdrafts. In a microburst, a storm cloud dumps cool air and rain straight down, like water from a broken awning. The air spreads horizontally after it lands, so the pilot thinks he’s flying into a headwind at first. He lifts the plane’s nose slightly and decreases the engines’ thrust. Then the downdraft hits, followed by a vicious tailwind, sending the aircraft to the ground.
His portfolio dovetails with Trump‑era efforts to centralize AI governance at the federal level and prioritize American AI, including an executive order aimed at overriding stricter state rules and pushing agencies to classify and tightly manage “high impact” AI systems in 2026. Public biographies from the Department of War emphasize his record raising tens of billions in private capital and forging global partnerships as proof he can corral the private sector into serving U.S. strategic aims.，更多细节参见体育直播
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